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  1. /*
  2.  * Copyright (C) 2005 Martin Decky
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. #include "main.h"
  30. #include <printf.h>
  31. #include "asm.h"
  32. #include "_components.h"
  33. #include <balloc.h>
  34. #include <ofw.h>
  35. #include <ofw_tree.h>
  36. #include "ofwarch.h"
  37. #include <align.h>
  38.  
  39. #define KERNEL_VIRTUAL_ADDRESS 0x400000
  40.  
  41. bootinfo_t bootinfo;
  42.  
  43. void bootstrap(void)
  44. {
  45.     printf("HelenOS SPARC64 Bootloader\n");
  46.  
  47.     component_t components[COMPONENTS];
  48.     init_components(components);
  49.  
  50.     if (!ofw_memmap(&bootinfo.memmap)) {
  51.         printf("Error: unable to get memory map, halting.\n");
  52.         halt();
  53.     }
  54.    
  55.     if (bootinfo.memmap.total == 0) {
  56.         printf("Error: no memory detected, halting.\n");
  57.         halt();
  58.     }
  59.    
  60.     if (!ofw_cpu(&bootinfo.cpu))
  61.         printf("Error: unable to get cpu properties\n");
  62.  
  63.     printf("\nDevice info\n");
  64.     printf(" cpu: %dMHz\n", bootinfo.cpu.clock_frequency/1000000);
  65.     printf(" memory: %dM\n", bootinfo.memmap.total>>20);
  66.  
  67.     printf("\nMemory statistics\n");
  68.     printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS);
  69.     printf(" %P: boot info structure\n", &bootinfo);
  70.    
  71.     unsigned int i;
  72.     for (i = 0; i < COMPONENTS; i++)
  73.         printf(" %P: %s image (size %d bytes)\n", components[i].start, components[i].name, components[i].size);
  74.  
  75.     void * base = (void *) KERNEL_VIRTUAL_ADDRESS;
  76.     unsigned int top = 0;
  77.  
  78.     printf("\nCopying components\n");
  79.     bootinfo.taskmap.count = 0;
  80.     for (i = 0; i < COMPONENTS; i++) {
  81.         printf(" %s...", components[i].name);
  82.         top = ALIGN_UP(top, PAGE_SIZE);
  83.         memcpy(base + top, components[i].start, components[i].size);
  84.         if (i > 0) {
  85.             bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = base + top;
  86.             bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = components[i].size;
  87.             bootinfo.taskmap.count++;
  88.         }
  89.         top += components[i].size;
  90.         printf("done.\n");
  91.     }
  92.  
  93.     balloc_init(&bootinfo.ballocs, ALIGN_UP(((uintptr_t) base) + top, PAGE_SIZE));
  94.  
  95.     printf("\nCanonizing OpenFirmware device tree...");
  96.     bootinfo.ofw_root = ofw_tree_build();
  97.     printf("done.\n");
  98.  
  99.     printf("\nBooting the kernel...\n");
  100.     jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS, &bootinfo, sizeof(bootinfo));
  101. }
  102.